ˌ ̷ ̷ ̷ ̷ˈfīsēˌē noun plural
Usage: capitalized
Etymology: New Latin, from xanth- + -phyceae
: a class of algae (division Chrysophyta) in which the green pigments of the chromatophores are partially masked by xanthophyll and reserves are commonly stored in the form of oil and which comprise the yellow-green algae